How do I enter a sales receipt without a customer email.

It's my pleasure to help you, @dmacrentalsllc-g.

Thank you for getting in touch with us. I'll share some insights about creating a sales receipt in QuickBooks Online.

It's optional to include an email address on your sales receipt in QuickBooks Online. You can decide whether you want to input an email to send to your customer or not if all you want to do is save and close the form. You can also enter an email address and check the Send later box if you need to send it at a later time.

Check out this article if you need to manage your sales receipt in QuickBooks Online: Create and send sales receipts in QuickBooks Online.

You can also personalize and add information to your sales forms. Please see the following article: Customize invoices, estimates, and sales receipts in QuickBooks Online.

Please click the Reply button below if you need further assistance with your sales receipts in QuickBooks Online. I'm always here to help you. Keep safe, dmacrentalsllc-g.